OPNSense Multiple NIC Only 1 Cable Connected Setup Possible?

[cartern]

I have a ethernet cable connected to the motherboard nic, I have a dual port pcie card but with no cables.
Is it possible to bridge these ports together in proxmox so I can create 2 more bridges from the pcie card
My plan is to have lan/wan bridges (2) for opnsense and have vmbr0 bridge (1) to access proxmox in case the firewall goes down?

 

[louie1961]

No but you can create either virtual NICs or virtual bridges off of the motherboard NIC.